Process of producing illustrations.



A. L. ORMAY. PROCESS OF PRODUCING ILLUSTRATIONS.

-A'FPLICATION FILED NOV- 2, I915.

Patent-ed Apr. 18,1916.

5 INVENTOR 5 7 5W; ATTORNEY UNHED sra rss Parana orator...

ARTHUR L. OltMAY, 0F BROOKLYN, NEW YORK, ASSIGNOR TO HILL PUBLISHING COIWPANY, GE NEW YORK, N. Y., A CORPORATION OF NEW YORK.

PROCESS OF PRODUCING ILLUSTRATIONS.

Specification of Letters Patent.

Patented Apr. i8, 119$ 52 To all whom 2'25 may concern Be it known that I, An'rura L. ORMAY, a citizen of the United States, and a resident of Brooklyn, Kings county, and State of New York, have invented certain new and useful Improvements in Processes of Producing Illustrations, of which the following is a. specification. reference being had to the accompanying drawings, forming a part thereof.

My invention relates to. processes of producing illustrations for books, magazines, and the like, and particularly to a method or process which is well adapted to be used in the production of technical illustrations.

ln Patent No. Llltififll issued June 22-, 1915, to the Hill Publishing Company, on an application filed by me April (3, 1915, there are shown and described the various steps of a process of producing illustrations which is termed back-ground perspective.

According to my present invention, I provide a. different process in the same art, which produces what I have termed for convenience, flat-tone perspective.

Ono object ofmy invention is to provide a simple, practicable, and inexpensive process for producing illustrations that show the article, machine, machine element, mechanism, or engineering structure and its surroundings in a particularly striking manner, the illustration being based on an outline perspective and having only two grades of shading-one solid color, usually black, and the other a pattern shading which, as hereinafter explained, produces a striking contrast both with the white, unshaded areas and with the areas shaded in solid colors.

Other objects and advantages of my invention will be set forth hereinafter, and in order that my invention may be thoroughly understood I will now proceed to describe the same in the following specification and then point out the novel features thereof in appended claims.

Referring to the drawings: Figure 1 is a line. drawing which illustrates the first step in my process. photographing the drawing of Fig. 1 is shown in Fig. 2. Fig. 3 is a copper, or other plate or line engraving, produced from the negative of Fig. 2, with the unshaded areas gamboged. Fig. 4. shows the plate of Fig. 3, after it has had a Ben Day film A negative produced by.

trate a part of a machine for book or technical magazine; for example,an outline perspective of the desired part is made similar to that of Fig. l. A con -realest way to produce this is to obtain a photograph of the part to a suitable scale for reduction, then outline on the photographic print, so that they will stand out through a tracing cloth or paper, the parts which would be represented by lines in a line drawing. A tracing is then made from the phctograph, thereby producing the desired perspective line drawing of the object.

An alternate method is to ink over the out line on the photograph and then bleach. the color from the photograph, leaving the outline in black lines on a white surface. On this drawing the areas which are to be shaded solid are filled in in black and the areas which are to have the pattern shading in the final drawing, may be indicated by filling in with light blue pencil shading to guide the engraver without producing any efieot on the negative which is taken of it. instead of shading the original line drawing, or

tracing, with light surface shading, a print of the negative taken thereof, may be made and shaded to constitute a guide for the engraver. Next, a negative is taken of the line drawing. This is as shown in Fig. 2 of the drawings. A positive is then printed from this negative on metal to give the neg" ative cut. This is gainboged or coated with soluble matter, to cover the entire surface of the plate except the areas to be shaded. Next, a Ben Day film is made and is rolled over the plate, covering the areas which are not shaded solid, with the required pattern. The gamboge is then washed off and the plate baked and etched in a well known manner, The plate then appears as shown in F ig. 4 and is ready to be used in the prodnction of printed illustrations which have appearance of Fig. i

The following advantages of the dab tone perspective illustration of my invention may be mentioned. First, the illustration is particularly clear since all the confusing daim is:

prc-cess of pmducing plates for picasf' ions having snad d areas in mm gamer in 133. 5%),

tunes 0& an ardinmry Imifit cut mime-en blank and W is pwrtlcuiarly 1-01 1'1 strainuas v'rn ('3, with 1a my a solid. shading, W 51am z'iegafislve on a PhOLU'SBH" pim'a, gamboglng said plate 0:3 producing plates; for

mairms which consists of mak- 0 :5370111 iine drawing having printing frem said mega-- p si;c -s@ns1tizmi meiallic pints, 1m. file areas to be 011mg 21 Ben Day 151m GVBF. and than rem-wing the gamboge pla'iae.

51km eye th than @31 acccuns': sf filh, frum the printing pa 1 3 much easier to print the 5512i ii; quickly and? 1103515 sfirem efiest View, it

- '1 Rich consists of making a nega perspe-smve than any haif ona because A a 5, z'amlmg plate therefrom, and acid- 1154 1 plate on yams theseef of re6e- .n fighl'; surface shachng of 91mm by.

whereei, have hereuntc; set 36th day 91? Dumber 1915.

ARTHUR L. ORMAY.

01'' x10 make-ready Wi'il be. nacessary w P msper afieci, and. if any is a EJ1111 1" t ans imp mixing a, negative. item apmcess of producing pictorial- 1mm lne drawing having only solid. 

